Automatic hydraulic ball cock



Oct. 9

w. L. GILCHRI ST AUTQMATIC- HYDRAULIC BALL COCK Filed Nov. 15, 1926 Patented Oct. 2 5, 1927, J

WILLIAMJLJGILCHBIST,'OF'ALBANY,'OREGO1\T; i

j AiIToMATIc HYDRA iiL Ic ALL cooki Application "filed November 15, 192G.:- "Seria1 N5; 38,5911.

5' present invention relates my pending applicationlin'United State's ]?at a nt'.( )f-v fice filed under date of June2,1r925; Serial Number-34,398, for automatic hydraulic ball cocks, and further relates to, my 'aendinglapplication in United. States a Patent Oflice filed August 28,1926, Serial Niimber 'leazaa io automatic .hydraiilic measuring valves;-

My present invention is intendedlfor use infinshing: on toilets and for; other similar purposes. "'fff j H .Theprimary object of my present invention consists in providing a simple device and one that is' economical in [construction and with but few parts, adapted to befauto maticallyactuated by a float ball. I V Afurther object of my invention consists providing simple and efiicient means for supply underpressureg 5 i 4 I Still further objects of my invention con- Y s ist in providing a ball valveand means for actuating thesame 1 25 A:further objectjof myinvention consists in .providingfmeans, to prevent abwater hammer inthe device, and one that WlllbB substantially free from fcperating; noises. Y

, With these and incidental Qobjects iin vievv;

3 the invention consists in certain novelfeatures of construction and. combination of parts, the essential elements which; are set forthin the appended "claims, ,andsa pre ferred form of-rembodiment is hereina iter I accompany, and form: a part cf'this speciii} 'cati0n. -l i, :ftIn-the drawingsr L4, Figgl'yis a fragmentar sectional view 10f the device.

W .FigJEZ sideelevaticn,partially;in-Jsec-v t'ion of the mechanism illustratediiiFigJl: -i

l Fig; 3 is a side elevation ofthe actuating mechanism illustrating the-,cainming; end: of the floatball carrying rod and the actuator I for-tripping andv openingthe lba'llqvalvegfl .Fig. leis-an end viewvvt'aken 'on linenn of Fig, 2, looking inthedirectionindicated.

6 a aactnating' cylinder;v

- Fig. 5 is across section"view throughahei Like reference. 1 characters 'neferi to i -like I .rpartsfthroughont theseveraLviews,

"the engagement and disengagement llof the device .With and from thesourceflof water SllQWIlj ,With reference to the. drawings: which 7 secured thereto as by being threaded 'therea bushing 5. An annular shoulderflG is' dis.-

posed inthelovver side .of the'valve casing and .'.c0n1'pressible} Washer 7- is disposed be tween the lipper," end 8; of the bushing 5,

and'the shoulder 6. This is preferably made Q of flexible and-;;c0mpressib1e 'inateriaL3 A central opening passes through: the memberand -in iregist efrable alignment with "the 1 o peningg, passing through the outletpipe ,4. i A ball 'valve llOi isinorinally' seated upon the compressible member '7 and .is adapted to be I moved finto, and out of engagement 1 With, the central opening passing l there through." 1 A cylinder 1 1 v is re'movably secured-to the valve casing and a piston 12 is reciprocably disposed Within the; cylindri- I cal chamber 13; The piston rod 1 passes- 'I throu gh the cylinder and in" alignment with the ball valve 10, W h en the pistonfrodll' is, in position as illustrated inFig. 2 11118 ball l0 is out of engagementvvith its seat casing ;1. I :-An openingflfi passes through the L W 1 J -i etm t f t ,fre ngag en an i disengagement of sthe ballgl 0iivvithv the v Wall g -v 15. v The. piston; rod 14 .i's-actuated ,throngh ;the --action ofthe leverv L}; floatball arm 181is pivoted-abouta journalv-pin l9, and a I I'projecting lug 20 is disposed: upon theinnder side thereofand isgadapted to engagement Withthelever'farm. 17". notch-21isfdisand; contacts With thevvzall 150391116 valve posed in; the outergperiphe'ry -of the. bearing A 17 is adapted to engagement;--,Within-"the surface 22, and a projection 23fonthe lever ;notch21. The calnmingsurfacefi disposed iupon the inneii end-of the ball leve'risiadaptp j ed gto disengagethe lug 23 from engagement" 1 in the notch- '21; thus permitting: the' freQ;

movement of the piston rodi 1ft outwardly; v .1 TL'iquid; enters (the cylindrical chamber, 13 through a free opening 25.;QThe {high preschamben 2; of :the {valve casing. The piston rod; ltlpasses through; :the; outside vvallj 26' v v woflthecylinder?fiand'igga- "space-I271'exists be-g,

"seat after theinner end 28 of the piston rod r combination of a valve caslng, a removable high-pressure and the outer end of the 1 piston rod is free or under extremely limited pressure, the piston 12 will be moved longitudinally of the cylinder; the liquidwithm the cylindrical chamber 13 escaping through the opening 27 disposed around the outer end of the piston rod, until the piston 12 passes the free opening 25, after which the piston movement willbe slowed down for the remainder of thestroke. The liquid flowing through the outlet pipe 4 will have a tendency, to draw the ball back into its has moved free of the ball. To form a tight seal "between: the piston rod and the outer wall 26 of the j cylinder, a compressible Washer 30 is placed within the cylinder about thepiston rod and adjacent the piston'l2 and slidable on the rod. The .inner wall '31 of thepiston is preferably made not atright angles to that of the piston rod thus forming a recess 32 inlthe side of the piston facing the compressible washer. Therefore, the piston will engage the compressible washer'on or about its outer peripheral. edge and will compress the same against the inner wall 33 of the cylinder head when in its 'outer position thus' preventing furtherleakage of the liquid from the cylinder through,theoutlet 27 disposed about the outer; end. of the piston rod 14;.

The primary purpose of the piston operating in the cylinder consists in means for the prevention of a water hammer, for after the piston passes'the free opening within the cylinder wall the outwardjmovement ofthe piston will be retarded and the speed of the same will be controlled by the escapement of the trapped liquid. within-the cylinder ipassingthroughthe space disposed between the piston rod andthe cylinder head. I

" 7 While the formof mechanism herein "all I coming within which follow.

shown and described is admirably adapted toa'ccomplish the objects primarily stated, it is not intended to confine the invention to the specific form herein described, as it is susceptible" of embodiment in various ways the scope of the claims What I'claim is: i -c1. In a device o-fthe class described, the

associated withthe seat, a cylinder disposed through thevalve casing'wall and closed'at its outer end, a piston and piston rod associated with the cylinder and the rod passing through its outer end, and automatic means for' actuating' the frpiston and piston rod to unseat the valve when moved in one direction and for permitting the valve to seat when moved in another direction.

2. In a device of the class described, the combinaton of a valve casing, inlet and discharge outlets associated with the casing, a valve associated with the discharge outlet, a cylinder disposed through the valve cas-v ing wall and closed at its outer end, a piston and piston rod associated with the cylinder and the rod passing through its outer end and automatic means for actuating the piston and piston rod to unseat. the valve when moved in one direction and for pere mittingthe valve to seat when moved in another direction.. I r v H H 3. In a device of the class described, the

cylinder associated with thecasing, inletand outlet passagewaysassociated with the cyl inder, aipiston and piston rod reciprocably associated with the cylinder actuating means for reciprocating the piston and-piston rod longitudinally of the cylinder and a comabout said piston rod adapted to, closelthe pressible element adjacent the piston and outlet passageway when the piston has moved to'the outer end of said cylinder.

4. In adevice of the class describedthe combination of a valve casing, a cylinder having a reciprocable piston and piston rod associated therewith disposed through the wall of the valve casing, said cylinder'being providedwith an inletpassageway communicating with the interior of'the casing,

g on

and an outlet passage wayleading to the exterior of the casing; a washer associated I with the piston and piston rod,,andf said piston being provided with a recess to provide a peripheral portion toengage said washer to permit said washer to close said outlet passageway when the piston is moved in one direction. 7' r 5. In a device of the class des cribed,'a

, valve casing, including inlet and outlet; pas- III rod to engage said ball valve to'move'it from its seat comprising a fulcrurned float ball arm, a rockable lever adapted to engage one end of said piston rod, and means permitting a cooperative movement of the arm and'lever in one direction of movement of the'fioat ball arm, means for retaining the lever in its position for holding thefvalve open-upon the opposite movement of the completion of the opposite movement of the arm to permit the'valve to close. f

6. In a device of the: class described, a

arm, and means for releasing the lever upon 3 r valve casing including inlet and discharge when the arm is moved in one directien; 7

passageways, a ball valve normally; seated means for retaining said-lever in its posiover the Outlet passageway, a thrust member 7 tion to maintain the'valve open and means 7 to unseat said valve; means to eause's'aid actuated by said arm when moved in the '5 thrustmember to unseatsaid valve comprisopposite direction to release said retaining ing a fulcrumed arm, a 'rocka ble lever engagmeans to permit the valve to close. ing said thrust member, and a projecting- V lug formed on said arm to engage said lever WILLIAM L. 'GILCHRIST; v 

